﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Pay
{
    public class BuyGoodsInfo : GoodsInfo
    {
        public int BuyCount { get; set; }
        public double XiaoJi
        {
            get 
            {
                return this.SalePrice * BuyCount;
            }
        }
    }
}
